近年,随着产业结构的调整,马铃薯种植面积逐年扩大,而被称为“癌症”的系统性、毁灭性土传病害青枯病对马铃薯的危害也连年加重,成为马铃薯病害中仅次于晚疫病的常见病和多发病,一旦发生,发病田块大幅度减产,发病重的产量损失可达80%左右,甚至绝收。发病原因:引起马铃薯青枯病的病原菌为细菌门假单胞杆菌属的青枯假单胞菌(图1),短杆状的单细胞菌体两端呈圆形,并着生 In recent years, with the adjustment of the industrial structure, the area planted with potato has been expanded year by year. However, the systemic and destructive soil-borne bacterial wilt disease, known as the “cancer”, has also increased the harm to potatoes year after year, making it the second most frequent potato disease In the common and frequently occurring blight of late blight, if the occurrence occurs, the yield of the blighted field will be greatly reduced, and the yield loss due to heavy blight may reach about 80% or even exceed the yield. The cause of the disease: the pathogen causing potato bacterial wilt Bacillus bacteria Pseudomonas aeruginosa Pseudomonas solanacearum (Figure 1), short rod-shaped single-cell bacteria at both ends of a round, and students